Roller-bearing.



40 y vbearing the differential speed of the cylintain new UNITED STATES ira'rnNT euries.

ROBRT F. BOY/VER, OF DETROIT, MICHIGAN, ASSIGNOR TO BOWER ROLLER BEARING COMPANY, OF DETROIT, MICHIGAN, A CORPRAEION OF MICHIGAN.

l :aonLER-nriaiuivel Specification of Letters'latent.

Patented heh. 3, ififd.

Application led August 11, 1915. Serial .N 0.411,932.

T all whom t may concern.'

Be it known that I, ROBERT F. Bowen, a citizen of the United States of America, residing at Detroit,'in the county of Wayne and State of Michigan, have invented cerand useful Improvements .in Roller-Bearings, of Which-the following is a specification,reference being had therein lto the accompanying drawings.

The invention relates to roller bearings designed to sustain end thrust as Well as radial thrust, and of the type in Which there is a cylindrical body portionl with an enlargement at one end only thereof.

It is the. object of the invention,` first, to obtaina construction which Will take care of end thrust in opposite directions Without any detriment to the radial thrust bearing;

second, to provide a simplev and inexpensive ymeans of converting'a single end thrust bearing into a double end thrust bearing; third, 'to' facilitate the assembly of" the parts; and fourth, to obtain a simple and compact construction Which is easily manufactured and is serviceable in operation.

' Inthe drawings: Figure 1 is a sectional. and Fig. 92 is a section on line x-- Fig. 1. 4-

My construction is an improvement in that type of bearing in Which the rollers are comparatively short and provided With.

l enlarged heads at one end only, Which heads have Aoppositely angling beveled faces forniing a V-shaped section. The rollers engage annular inner and outer Arace members which are grooved to receive the enlarged 'heads vand are provided With complementarybeveled:-faces for taking the end thrust. There is also provided a suitable cage or spacer for the rolls'. With this type of drical vportion and enlarged head-portions oi the lrolls is not detrimental, for the rea-- thickness of,;.the head Ais slight in comparison With thef diameter of the roll. As a` consequence bearings of this type Will stand up under severe usage Where subjected' to tion to ltheouter race member.

both radial and end thrust, and tne Wear in both the rolls and the race members is comparatively slight. Heretofore bearings this type, which are capableV of sustain- A ingy end thrust in one direction, have been vextensively used, such construction beine n v C shown in my prior Patent No; 1,070,664. As shown in this prior patent, the inner race member is grooved to receive the enlarged heads ofr the rolls and to form the end thrust surface for the outer face of the roll head. The 'outer race member is, however, merely provided with a beveled face at its end to engagev the inner beveled face of the roll head, and thus the part-s may be readily assembled. TheA present. construction is'designed to take end thrust in opposite directions, which necessitates grooves in both'theouter and the inner race members,

and consequently the problem arises as to how to assemble the parts, for the diameter of the heads of the rolls is greater than the space y between the inner and outer race members. This problem I have solved by dividing one of the race members in the plane of'the groove, so that the portions upon opposite. sides of the dividing plane may be assembled from opposite vsides of the rolls. A further advantage othis construction is that it permits the use of the standard single` end thrust bearing, such as shown in my former patent, in the construction ofthe double end thrust bearing, it being merely necessary to add another sec- 'Ihus any single end thrust bearingmay be changed into a double end thrust bearing by `the addition of this one part, or on the contrary, a double end thrust bearing may be converted into a single end thrust 'by the removal ot'this part, `which is a great convenience in manufacturing Where both kinds of bearings are used.

As shown, A is theinn'er race member, which is provided on its outer Jface with 'a cylindrical portion B, a groove C' and beveled faces D and D oii opposite sides of said y groove.

connecting portion E at the bottom of the groove i I f F are s the rollers, each of Which'is provided i'vith a. cylindrical portion Gr for en- These beveled faces are held in, iXed relation to each other by the integral ice ' gaging tho cylindrical portionB of the race l member, arid the enlarged head H, having d eilig; the area er beveled faces land I for respectively enF gaging the beveled faces D and D of the race member. The rolls G are held in prop lerly spaced relation to each other and in engagement with the race member by means of a suitable cage or spacer. T his, as shown7 comprises a stamped sheet metal construetion including a fiat ring .l which bears 4against the heads of the rolls in between the outer and inner race members, and bent lugs K integral with said ring, which extend between adjacent rolls to space the same and retain them in engagement with the race member. The parts are assembled b" first engaging` the rolls with the race member and then opening the lugs of the cage, said ings shaving reduced neck portions l2 which previde clear-armel for the enlarged heads oi? the rolls.

The construction as thas deseribeiil :onstitules an assembiyY .ivhiw' may read ily engaged with the outer race member iii et a single end thrust bearing'. lli/'hen thus env gagedtlie thrust is tran si'nitted from the outer beveled :tacelr of the race member A to the outer beveled faces l of the rolls, and from the inner beveled faces l of said rolls to the beveled face N on the outer race member M,

.this being the construction.. shown in my former patent. To convert this construetion into a double end thrust bearing l have added a member O which has an inner tace P abutting against the outer face of the member M, also a beveled face Q which transmits the end thrust te the beveled racesv I of lthe relis, and opposed to the end thrust transmitted 'om the beveled l -of the inner rece member `to the bei/'ei et the rolls The member il is pie'i'ferablv ther provided with a, eylindriiail 'porti between the beveled pe aee Pg which privir'" for the heads of treni-e a een ra ey Y te mane these obvious that ev ship is requl f fare i;

arma/ee lits the member lvl. This is permissible as the only function of the ring- O is to receive end thrust, and the radial clearance thus provided will permit said vmember 0 to find its seat. fl`hus, even where there is a slight eecentricit)7 in the beveled face Q in relation te the outer aee of the member O, this will produce no binding effect. v

The consti' ation :Visydescribed :is one which can be manufactured at small cost, and as above stated, the enljv part' required in ad disingle end thrust bearing is the me )er if. I

Alilhat l eiaii as my imfeiitien is:-

ln a relier Y aring, the een;i natien with a single end .i ist assembly7 comprising; a series et relis each, having a cylindrical por 'tien and an enlarfr'ed head at une end with 'opposed and tin t taees, an inner annular race member having; a cylindrical aee with. which the cylindrical portions of said yells engage and 'a greeve having opl'msitely-beveled faces'u an eater race member having a cylindricalpertion for engaging the cylindrical portions et said rolls and a beveled end for engaging; the inner beveled faces of said rolls oi an additional 'race member abutting against 'theend of said outer race member and tei-ming a groove forA the heads er the rolls, withan oppositely-beveled tace, said additional rase member Converting said single end thrust a,ssemblff` inte a double end thrust hearin and i d ai? sightly li 'er diameter t ee member et said 

